Siemens SINUMERIK 840D Operating Manual page 439

Milling
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
3. Press the menu forward key and the "Settings" softkey.
4. Press the "Multi-channel view" softkey.
The "Settings for multi-channel view" window is opened.
5. Set the multi-channel or single-channel view and define which
channels are to be seen in the "Machine" operating area - and in the
double editor - in which sequence.
Multi-channel view
9.3 Setting the multi-channel view
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